Finding the Third Proportional to 1,069,606 and 1,604,640

Step by Step Solution

1. Step 1: Write the proportion equation
   1,069,606 : 1,604,640 = 1,604,640 : x
2. Step 2: Convert to fraction form
   1,069,606/1,604,640 = 1,604,640/x
3. Step 3: Cross multiply
   1,069,606x = 1,604,640 × 1,604,640
4. Step 4: Simplify right side
   1,069,606x = 2,574,869,529,600
5. Step 5: Solve for x
   x = 2,574,869,529,600/1,069,606
6. Step 6: Final answer
   x = 2,407,306.55